Palaeozoic evolution of animal mouthparts

 

Authors: Klug C, Frey L, Pohle A, De Baets K, Korn D

Published in: Bulletin of Geosciences, volume 92, issue 4; pages: 511 - 524; Received 10 November 2016; Accepted in revised form 22 September 2017; Online 6 December 2017

Keywords: Gnathostomata, Cephalopoda, evolution, convergence, diversity, nekton, jaws,

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Abstract

During the Palaeozoic, a diversification in modes of life occurred that included a wide range of predators. Major macroecological events include the Cambrian Explosion (including the Agronomic Substrate Revolution and the here introduced ’Ediacaran-Cambrian Mouthpart Armament’), the Great Ordovician Biodiversification Event, the Palaeozoic Plankton Revolution, the Siluro-Devonian Jaw Armament (newly introduced herein) and the Devonian Nekton Revolution. Here, we discuss the evolutionary advancement in oral equipment, i.e. the Palaeozoic evolution of mouthparts and jaws in a macroecological context. It appears that particularly the latest Neoproterozoic to Cambrian and the Silurian to Devonian were phases when important innovations in the evolution of oral structures occurred.

References

ADRAIN, J.M., FORTEY, R.A. & WESTROP, S.R. 1998. Post-Cambrian trilobite diversity and evolutionary faunas. Science 280, 1922-1925.View article

ALGEO, T.J. & SCHECKLER, S.E. 1998. Terrestrial-marine teleconnections in the Devonian: links between the evolution of land plants, weathering processes, and marine anoxic events. Philosophical Transactions of the Royal Society of London, (B): Biological Sciences 353, 113-130.View article

ALROY, J. 2004. Are Sepkoski’s evolutionary faunas dynamically coherent? Evolutionary Ecology Research 6, 1-32.

ALROY, J. 2010a. Fair sampling of taxonomic richness and unbiased estimation of origination and extinction rates. Quantitative methods in paleobiology. Paleontoleontological Society Papers 16, 55-80. View article

ALROY, J. 2010b. The shifting balance of diversity among major marine animal groups. Science 329, 1191-1194.View article

ANDERSON, P.S.L. & WESTNEAT, M.W. 2007. Feeding mechanics and bite force modelling of the skull of Dunkleosteus terrelli, an ancient apex predator. Biology Letters 3, 77-80.View article

ANDERSON, P.S.L., FRIEDMAN, M., BRAZEAU, M.D. & RAYFIELD, E.J. 2011. Initial radiation of jaws demonstrated stability despite faunal and environmental change. Nature 476, 206-209.View article

ANDREEV, P., COATES, M.I., KARATAJUTË-TALIMAA, V., SHELTON, R.M., COOPER, P.R., WANG, N.Z. & SANSOM, I.J. 2016. The systematics of the Mongolepidida (Chondrichthyes) and the Ordovician origins of the clade. PeerJ 4, e1850. https://peerj.com/articles/1850/View article

BAMBACH, R.K. 1993. Seafood through time: changes in biomass, energetics, and productivity in the marine ecosystem. Paleobiology 19, 372-397.View article

BAMBACH, R.K. 1999. Energetics in the global marine fauna: a connection between terrestrial diversification and change in the marine biosphere. Geobios 32, 131-144.View article

BAMBACH, R.K., KNOLL, A.H. & WANG, S.C. 2004. Origination, extinction, and mass depletions of marine diversity. Paleobiology 30, 522-542.View article

BARRANDE, J. 1872. Systeme Silurien du centre de la Boheme. Iere partie: Recherches paléontologiques, Suppl. 1. 648 pp. Privately published, Prague & Paris.

BENGTSON, S. 2002. Origins and early evolution of predation. Paleontological Society Papers 8, 289-318. View article

BENGTSON, S. & YUE, Z. 1992. Predatorial borings in late Precambrian mineralized exoskeletons. Science 257, 367-369.View article

BOLETZKY, S. VON 2007. Origin of the lower jaw in cephalopods: a biting issue. Paläontologische Zeitschrift 81, 328-333.View article

BRADDY, S.J., POSCHMANN, M. & TETLIE, O.E. 2008. Giant claw reveals the largest ever arthropod. Biology Letters 4, 106-109.View article

BRAUCKMANN, C., CHLUPÁČ, I. & FEIST, R. 1993. Trilobites at the Devonian-Carboniferous boundary. Annales de la Société géologique de Belgique 115, 507-518.

BRAZEAU, M.D. & FRIEDMAN, M. 2015. The origin and early phylogenetic history of jawed vertebrates. Nature 420, 490-497.View article

BRETT, C.E. 2003. Durophagous predation in Paleozoic marine benthic assemblages, 401-432. In KELLEY, P., KOWALEWSKI, M. & HANSEN, T. (eds) Predator-Prey Interactions in the Fossil Record. Kluwer Academic-Plenum Publishers. View article

BRETT, C.E. & WALKER, S.E. 2002. Predators and predation in Paleozoic marine environments. Paleontological Society Papers 8, 93-118. View article

BRIGGS, D.E., ERWIN, F.J. & DOUGLAS, H. 1994. The fossils of the Burgess Shale. 238 pp. Smithsonian Institution Press, Washington.

BUATOIS, L.A., NARBONNE, G.M., MÁNGANO, G.A., CARMONA, N.B. & MYROW, P. 2014. Ediacaran matground ecology persisted into the earliest Cambrian. Nature Communications 5, 3544.View article

BUSH, A.M. & BAMBACH, R.K. 2011. Paleoecologic megatrends in marine metazoan. Annual Review of Earth and Planetary Sciences 39, 241-269.View article

BUTTERFIELD, N.J. 2001. Ecology and evolution of the Cambrian plankton, 200-216. In ZHURAVLEV, A.Y. & RIDING, R. (eds) The Ecology of the Cambrian Radiation. Columbia University Press, New York.

BUTTERFIELD, N.J. 2008. An early Cambrian radula. Journal of Paleontology 82, 543-554.View article

CHEN, D., BLOM, H., SANCHEZ, S., TAFFOREAU, P. & AHLBERG, P.E. 2016. The stem osteichthyan Andreolepis and the origin of tooth replacement. Nature 539, 237-241.View article

CLARKE, J.M. 1912. The Eurypterida of New York. Vol. 2. New York State Museum Memoir 14, 1-439.

CLAUSEN, C.D. 1969. Oberdevonische Cephalopoden aus dem Rheinischen Schiefergebirge. II.: Gephuroceratidae, Beloceratidae. Palaeontographica A 132, 95-178.

CLEMENTS, T., COLLEARY, C., DE BAETS, K. & VINTHER, J. 2017. Buoyancy mechanisms limit preservation of coleoid cephalopod soft tissues in Mesozoic lagerstätten. Palaeontology 60, 1-14.View article

CLOSS, D. 1960. Contribuiçao ao estudo dos Aptychi (Cephalopoda-Ammonoidea) do Jurássico. Pôrto Alegre: Universidad do Rio Grande do Sul, Publicacao Especial 2, 1-67.

CLOSS, D. 1967. Goniatiten mit Radula und Kieferapparat in der Itararé-Formation von Uruguay. Paläontologische Zeitschrift 41, 19-37.View article

COLLETTE, J.H. & HAGADORN, J.W. 2010. Early evolution of phyllocarid arthropods: Phylogeny and systematics of Cambrian-Devonian archaeostracans. Journal of Paleontology 84, 795-820.View article

CONWAY MORRIS, S. 1985. Cambrian Lagerstätten: their distribution and significance. Philosophical Transactions of the Royal Society of London B 311, 49-65.View article

CONWAY MORRIS, S. & JENKINS, R. 1985. Healed injuries in early Cambrian trilobites from South Australia. Alcheringa 9, 167-177.View article

CONWAY MORRIS, S. & ROBISON, R.A. 1986. Middle Cambrian priapulids and other soft-bodied fossils from Utah and Spain. The University of Kansas Paleontological Contributions 117, 1-22.

DAHL, T.W., HAMMARLUND, E.U., ANBAR, A.D., BOND, D.P.G., GILL, B.C., GORDON, G.W., KNOLL, A.H., NIELSEN, A.T., SCHOVSBO, N.H. & CANFIELD, D.E. 2011. Devonian rise in atmospheric oxygen correlated to the radiations of terrestrial plants and large predatory fish. PNAS 107, 17911-17915.View article

DALEY, A.C., PATERSON, J.R., EDGECOMBE, G.D., GARCÍABELLIDO, D.C. & JAGO, J.B. 2013. New anatomical information on Anomalocaris from the Cambrian Emu Bay Shale of South Australia and a reassessment of its inferred predatory habits. Palaeontology 56, 971-990.View article

DONOGHUE, P.C.J. & SANSOM, A.I.J. 2002. Origin and early evolution of vertebrate skeletonization. Microscopy Research and Technique 59, 352-372.View article

ERIKSSON, M.E., PARRY, L.A. & RUDKIN, D.M. 2017. Earth’s oldest ’Bobbit worm’ - gigantism in a Devonian eunicidan polychaete. Scientific Reports 7, 43061.View article

FORCHIELLI, A., STEINER, M., KASBOHM, J., HU, S. & KEUPP, H. 2014. Taphonomic traits of clay-hosted early Cambrian Burgess Shale-type fossil Lagerstätten in South China. Palaeogeography, Palaeoclimatology, Palaeoecology 398, 59-85.View article

FRYE, C.J. & FELDMANN, N.R.M. 1991. North American Late Devonian cephalopod aptychi. Kirtlandia 46, 49-71.

GABBOTT, S.E. 1999. Orthoconic cephalopods and associated fauna from the Late Ordovician Soom Shale Lagerstätte, South Africa. Palaeontology 42, 123-148.View article

GOUDEMAND, N., ORCHARD, M.J., URDY, S., BUCHER, H., & TAFFOREAU, P. 2011. Synchrotron-aided reconstruction of the conodont feeding apparatus and implications for the mouth of the first vertebrates. PNAS 108, 8720-8724.View article

HALANYCH, K.M. 2004. The new view of animal phylogeny. Annual Review of Ecology Evolution, and Systematics 35, 229-256.View article

HANNISDAL, B. & PETERS, S.E. 2011. Phanerozoic Earth System Evolution and Marine Biodiversity. Science 334, 1121-1124.View article

HARPER, D.A.T. 2006. The Ordovician biodiversification: Setting an agenda for marine life. Palaeogeography, Palaeoclimatology, Palaeoecology 232, 148-166.View article

HARVEY, T.H.P. & BUTTERFIELD, N.J. 2008. Sophisticated particlefeeding in a large Early Cambrian crustacean. Nature 452, 868-871.View article

HINTS, O. & ERIKSSON, M.E. 2007. Diversification and biogeography of scolecodont-bearing polychaetes in the Ordovician. Palaeogeography, Palaeoclimatology, Palaeoecology 254, 95-114.View article

HOCHBERG, R., WALLACE, R.L. & WALSH, E.J. 2015. Soft Bodies, Hard Jaws: An Introduction to the Symposium, with Rotifers as Models of Jaw Diversity. Integrative & Comparative Biology 55, 179-192.View article

HOLLAND, B., STRIDSBERG, S. & BERGSTRÖM, J. 1978. Confirmation of the reconstruction of Aptychopsis. Lethaia 11, 144.View article

HOUSE, M.R. 2002. Strength, timing, setting and cause of mid Palaeozoic extinctions. Palaeogeography, Palaeoclimatology, Palaeoecology 181, 5-25.View article

JABLONSKI, D. 2001. Lessons from the past: Evolutionary impacts of mass extinctions. PNAS 98, 5393-5398.View article

JANVIER, P. 1996. Early Vertebrates. Oxford monographs on geology and geophysics 33, 393 pp. Clarendon Press, Oxford.

JANVIER, P. 2007. Homologies and evolutionary transitions in early vertebrate history, 57-121. In ANDERSON, J.S. & SUES, H.D. (eds) Major transitions in vertebrate evolution. Indiana University Press, Bloomington.

KEAR, A.J., BRIGGS, D.E.G. & DONOVAN, D.T. 1995. Decay and fossilization of non-mineralized tissue in coleoid cephalopods. Palaeontology 38, 105-131.

KELLEY, P.H., KOWALEWSKI, M. & HANSEN, T.A. (eds) 2003. Predator-Prey Interactions in the Fossil Record. Topics in Geobiology 20, 464 pp. Plenum/Kluwer, New York.View article

KLUG, C. & KORN, D. 2004. The origin of ammonoid locomotion. Acta Palaeontologica Polonica 49, 235-242.

KLUG, C., DE BAETS, K., KRÖGER, B., BELL, M.A. & KORN, D. 2015a. Normal giants? Temporal and latitudinal shifts of Palaeozoic marine invertebrate gigantism and global change. Lethaia 48, 267-288.View article

KLUG, C., FREY, L., KORN, D., JATTIOT, R. & RÜCKLIN, M. 2016. The oldest Gondwanan cephalopod mandibles (Hangenberg Black Shale, Late Devonian) and the Mid-Palaeozoic rise of jaws. Palaeontology 59, 611-629.View article

KLUG, C., KRÖGER, B., KIESSLING, W., MULLINS, G.L., SERVAIS, T., FRÝDA, J., KORN, D. & TURNER, S. 2010. The Devonian nekton revolution. Lethaia 43, 465-477.View article

KLUG, C., KRÖGER, B., RÜCKLIN, M., KORN, D., SCHEMM-GREGORY, M., DE BAETS, K. & MAPES, R.H. 2008. Ecological change during the early Emsian (Devonian) in the Tafilalt (Morocco), the origin of the Ammonoidea, and the first African pyrgocystid edrioasteroids, machaerids and phyllocarids. Palaeontographica A 283, 1-94.View article

KLUG, C., KRÖGER, B., VINTHER, J., FUCHS, D. & DE BAETS, K. 2015b. Ancestry, origin and early evolution of ammonoids, 3-24. In KLUG, C., KORN, D., DE BAETS, K. KRUTA, I. & MAPES, R.H. (eds) Ammonoid paleobiology, Volume II: from macroevolution to paleogeography. Topics in Geobiology 44.

KORN, D. 1993. Typostrophism in Palaeozoic ammonoids? Paläontologische Zeitschrift 77, 445-470.View article

KORN, D. 2000. Morphospace occupation of ammonoids over the Devonian-Carboniferous boundary. Paläontologische Zeitschrift 74, 247-257.View article

KORN, D., BELKA, Z., FRÖHLICH, S., RÜCKLIN, M. & WENDT, J. 2004. The youngest African clymeniids (Ammonoidea, Late Devonian) - failed survivors of the Hangenberg Event. Lethaia 37, 307-315.View article

KORN, D., KLUG, C. & WALTON, S.A. 2015. Taxonomic diversity and morphological disparity of Paleozoic ammonoids, 431-464. In KLUG, C., KORN, D., DE BAETS, K., KRUTA, I. & Mapes, R.H. (eds) Ammonoid paleobiology, Volume II: from macroevolution to paleogeography. Topics in Geobiology 44..

KRÖGER, B. 2005. Adaptive evolution in Paleozoic coiled cephalopods. Paleobiology 31, 253-268.View article

KRÖGER, B. 2011. Size matters - Analysis of shell repair scars in endocerid cephalopods. Fossil Record 14, 109-118.View article

KRÖGER, B., VINTHER, J. & FUCHS, D. 2011. Cephalopod origin and evolution: a congruent picture emerging from fossils, development and molecules. Bioessays 33, 602-613.View article

KRUTA, I. & TANABE, K. 2015. Ammonoid radula, 539-552. In KLUG, C., KORN, D., DE BAETS, K., KRUTA, I. & MAPES, R.H. (eds) Ammonoid paleobiology. I: From anatomy to ecology, Topics in Geobiology 43.

LAMSDELL, J.C. & BRADDY, S.J. 2010. Cope’s Rule and Romer’s theory: patterns of diversity and gigantism in eurypterids and Palaeozoic vertebrates. Biology Letters 23, 265-269.View article

LEGG, D.A. & S. PATES, S. 2016. A restudy of Utahcaris orion (Euarthropoda) from the Spence Shale (Middle Cambrian, Utah, USA). Geological Magazine 154, 1-6.View article

LEMCHE, H. & WINGSTRAND, K.G. 1959. The anatomy of Neopilina galatheae Lemche, 1957 (Mollusca, Tryblidiacea). Galathea Report 3, 9-73.

LIOW, L.H., REITAN, T. & HARNIK, P.G. 2015. Ecological interactions on macroevolutionary time scales: clams and brachiopods are more than ships that pass in the night. Ecology Letters 18, 1030-1039.View article

LONG, J.A., LARGE, R.R., LEE, M.S.Y., BENTON, M.J., DANYUSHEVSKY, L.V., CHIAPPE, L.M., HALPIN, J.A., CANTRILL, D. & LOTTERMOSER, B. 2016. Severe selenium depletion in the Phanerozoic oceans as a factor in three global mass extinction events. Gondwana Research 36, 209-218.View article

LU, P.J., YOGO, M. & MARSHALL, C.R. 2006. Phanerozoic marine biodiversity dynamics in light of the incompleteness of the fossil record. PNAS 103, 2736-2739.View article

MALLAT, J. 1996. Ventilation and the origin of jawed vertebrates: a new mouth. Zoological Journal of the Linnean Society 117, 329-404.View article

MAPES, R.H. 1987. Upper Paleozoic cephalopod mandibles: frequency of occurrence, modes of preservation, and paleoecological implications. Journal of Paleontology 61, 521-538.View article

MARTÍNEZ-PÉREZ, C., RAYFIELD, E.J., BOTELLA, H. & DONOGHUE, P.C. 2016. Translating taxonomy into the evolution of conodont feeding ecology. Geology 44, 247-250.View article

MATERN, H. 1931. Oberdevon Anaptychen in situ und über die Erhaltung von Chitin-Substanzen. Senckenbergiana 13, 160-167.

MCGHEE, G.R. JR. 2014. When the invasion of land failed. The legacy of the Devonian extinctions. 317 pp. Columbia University Press, New York.

MCGHEE, G.R. JR., CLAPHAM, M.E., SHEEHAN, P.M., BOTTJER, D.J. & DROSER, M.L. 2013. A new ecological-severity ranking of major Phanerozoic biodiversity crises. Palaeogeography, Palaeoclimatology, Palaeoecology 370, 260-270.View article

MEHL, J. 1984. Radula and arms of Michelinoceras sp. from the Silurian of Bohemia. Paläontologische Zeitschrift 58, 211-229.View article

MISEREZ, A., SCHNEBERK, T., SUN, C., ZOK, F.W. & WAITE, J.H. 2008. The transition from stiff to compliant materials in squid beaks. Science 319, 1816-1819.View article

MISSARZHEVSKIJ, V.V. 1973. Konodontoobraznye organizmy iz pogranichnykh sloev kembriya i dokembriya Sibirskoj platformy i Kazakhstana [Conodont-shaped organisms from the Precambrian-Cambrian boundary beds of the Siberian Platform and Kazakhstan], 53-57. In ZHURAVLEVA, I.T. (ed.) Problemy paleontologii i biostratigrafii nizhnego kembriya Sibiri i Dal’nego vostoka. Trudy Instituta Geologii i Geofiziki SO AN SSSR 49. [in Russian]

MONNET, C., KLUG, C. & DE BAETS, K. 2011. Parallel evolution controlled by adaptation and covariation in ammonoid cephalopods. BMC Evolutionary Biology 11, 1-21.View article

MURDOCK, D.J., DONG, X.P., REPETSKI, J.E., MARONE, F., STAMPANONI, M. & DONOGHUE, P.C. 2013. The origin of conodonts and of vertebrate mineralized skeletons. Nature 502, 546-549.View article

NAGLIK, C., TAJIKA, A., CHAMBERLAIN, J. & KLUG, C. 2015. Ammonoid locomotion, 657-696. In KLUG, C., KORN, D., DE BAETS, K., KRUTA, I. & MAPES, R.H. (eds) Ammonoid paleobiology, Volume I: from anatomy to ecology. Topics in Geobiology 43.

NEDIN, C. 1999. Anomalocaris predation on nonmineralized and mineralized trilobites. Geology 27, 987-990.View article

NÜTZEL, A. & FRÝDA, J. 2003. Paleozoic plankton revolution: Evidence from early gastropod ontogeny. Geology 31, 829-831.View article

NÜTZEL, A., LEHNERT, O. & FRÝDA, J. 2007. Origin of planktotrophy-evidence from early molluscs. Evolution and Development 9, 311-312. View article

PARRY, L., TANNER, A. & VINTHER, J. 2014. The origin of annelids. Palaeontology 57, 1091-1103.View article

Paxton, H. 2009. Phylogeny of Eunicida (Annelida) based on morphology of jaws. Zoosymposia 2.1, 241-264. View article

PAYNE, J.L., HEIM, N.A., KNOPE, M.L. & MCCLAIN, C.R. 2014. Metabolic dominance of bivalves predates brachiopod diversity decline by more than 150 million years. Proceedings of the Royal Society B 281, 1-8.View article

PORTER, S.M. 2016. Tiny vampires in ancient seas: evidence for predation via perforation in fossils from the 780-740 million-year-old Chuar Group, Grand Canyon, USA. Proceedings of the Royal Society B 283, 1-6.View article

RIGBY, S. & MILSOM, C.V. 2000: Origins, evolution, and diversification of zooplankton. Annual Review of Ecology and Systematics 31, 293-313.View article

RITTERBUSH, K.,HOFFMANN, R., LUKENEDER, A. & DE BAETS, K. 2014. Pelagic Palaeoecology: the importance of recent constraints on ammonoid palaeobiology and life history. Journal of Zoology 292, 229-241.View article

ROOPNARINE, P.D. 2010. Graphs, networks, extinction and paleocommunity food webs. Nature Precedings. https://core.ac.uk/download/pdf/289133.pdf View article

RÜCKLIN, M., DONOGHUE, P.C.J., JOHANSON, Z., TRINAJSTIC, K., MARONE, F. & STAMPANONI, M. 2012. Development of teeth and jaws in the earliest jawed vertebrates. Nature 491, 748-751.View article

SANSOM, I.J. & SMITH, M.M. 2001. The Ordovician radiation of vertebrates, 156-171. In AHLBERG, E. (ed.) Major events in vertebrate evolution. Taylor & Francis, London.

SCHILLING, T. 2003. Making jaws. Heredity 90, 3-5.View article

SCHOPF, J.W., KUDRYAVTSEV, A.B., CZAJA, A.D. & TRIPATHI, A.B. 2007. Evidence of Archean life: Stromatolites and microfossils. Precambrian Research 158, 141-155.View article

SEILACHER, A. 1999. Biomat-related lifestyles in the Precambrian. Palaios 14, 86-93.View article

SEILACHER, A. & PFLÜGER, F. 1994. From biomats to benthic agriculture: A biohistoric revolution, 97-105. In KRUMBEIN, W.E., PETERSON, D.M. & STAL, L.J. (eds) Biostabilization of Sediments. Carl von Ossietzky Universität Oldenburg, Oldenburg.

SEILACHER, A., GRAZHDANKIN, D. & LEGOUTA, A. 2003. Ediacaran biota: The dawn of animal life in the shadow of giant protists. Paleontological Research 7, 43-54.View article

SEPKOSKI, J.J. JR. 1978. A kinetic model of Phanerozoic taxonomic diversity I. Analysis of marine orders. Paleobiology 4, 223-251.View article

SEPKOSKI, J.J. JR. 1984. A kinetic model of Phanerozoic taxonomic diversity III. Post-Paleozoic families and mass extinctions. Paleobiology 10, 246-267.View article

SEPKOSKI, J.J. JR. 2002. The compendium, 10-560. In JABLONSKI, D. & FOOTE, M. (eds) A compendium of fossil marine animal genera. Bulletins of American Paleontology 363.

SERVAIS, T., HARPER, D.A.T., LI, J., MUNNECKE, A., OWEN, A. & SHEEHAN, P.M. 2009. Understanding the Great Ordovician Biodiversification Event (GOBE): Influences of paleogeography, palaeoclimate, or paleoecology? GSA Today 19, 4-10.View article

SERVAIS, T., LEHNERT, O., LI, J., MULLINS, G.L., MUNNECKE, A., NÜTZEL, A. & VECOLI, M. 2008. The Ordovician Biodiversification: revolution in the oceanic trophic chain. Lethaia 41, 99-109.View article

SERVAIS, T., PERRIER, V., DANELIAN, T., KLUG, C., MARTIN, R., MUNNECKE, A., NOWAK, H., NÜTZEL, A., VANDENBROUCKE, T., WILLIAM, M. & RASMUSSEN, C.M.O. 2016. The onset of the ’Ordovician Plankton Revolution’ in the late Cambrian. Palaeogeography, Palaeoclimatology, Palaeoecology 458, 12-28.View article

SIGNOR, P.W. & BRETT, C.E. 1984. The mid-Paleozoic precursor to the Mesozoic marine revolution. Paleobiology 10, 229-245.View article

SIGNOR, P.W. & LIPPS, J.H. 1982. Sampling bias, gradual extinction patterns and catastrophes in the fossil record. GSA Special Paper 190, 291-296.View article

SIGNOR, P.W. & VERMEIJ, G. 1994. The plankton and the benthos: origins and early history of an evolving relationship. Paleobiology 20, 297-319.View article

SMITH, A.B., LLOYD, G.T. & MCGOWAN, A.J. 2012. Phanerozoic marine diversity: rock record modelling provides an independent test of large-scale trends. Proceedings of the Royal Society B 279, 4489-4495.View article

SMITH, A.B., REICH, M. & ZAMORA, S. 2013. Morphology and ecological setting of the basal echinoid genus Rhenechinus from the early Devonian of Spain and Germany. Acta Palaeontologica Polonica 58, 751-762.

STANLEY, S.M. 2007. An analysis of the history of marine animal diversity. Paleobiology 33, 1-55.View article

TANABE, K., KRUTA, I. & LANDMAN, N.H. 2015. Ammonoid buccal mass and jaw apparatus, 429-484. In KLUG, C., KORN, D., DE BAETS, K., KRUTA, I. & MAPES, R.H. (eds) Ammonoid paleobiology, Volume I: from anatomy to ecology. Topics in Geobiology 43.

TETLIE, O.E. 2007. Distribution and dispersal history of Eurypterida (Chelicerata). Palaeogeography, Palaeoclimatology, Palaeoecology 252, 557-574.View article

THAYER, C.W. 1979. Biological bulldozers and the evolution of marine benthic communities. Science 203, 458-461.View article

TRAUTH, F. 1927-1936. Aptychenstudien, I-VII. Annalen des Naturhistorischen MuseumsWien 41 (1927), 171-259; 42 (1928), 171-259; 44 (1930), 329-411; 45 (1931), 17-136; 47 (1936), 127-145.

TUREK, V. 1978. Biological and stratigraphical significance of the Silurian nautiloid Aptychopsis. Lethaia 11, 127-138.View article

UYENO, T.A. & CLARK, A.J. 2015. Muscle articulations: flexible jaw joints made of soft tissues. Integrative & Comparative Biology 55, 193-204.View article

UYENO, T.A. & KIER, W.M. 2005. Functional morphology of the cephalopod buccal mass: A novel joint type. Journal of Morphology 264, 211-222.View article

UYENO, T.A. & KIER, W.M. 2007. Electromyography of the buccal musculature of octopus (Octopus bimaculoides): a test of the function of the muscle articulation in support and movement. Journal of Experimental Biology 210, 118-128.View article

VALENTINE, J.W. 1969. Patterns of taxonomic and ecological structure of the shelf benthos during Phanerozoic time. Palaeontology 12, 684-709.

VALENTINE, J.W., JABLONSKI, D. & ERWIN, D.H. 1999. Fossils, molecules and embryos: new perspectives on the Cambrian explosion. Development 126, 851-859. View article

VANNIER, J., STEINER, M., RENVOISÉ, E., HU, S.X. & CASANOVA, J.P. 2007. Early Cambrian origin of modern food webs: evidence from predator arrow worms. Proceedings of the Royal Society B 274, 627-633.View article

VAN ROY, P., DALEY, A.C. & BRIGGS, D.E.G. 2015. Anomalocaridid trunk limb homology revealed by a giant filter-feeder with paired flaps. Nature 522, 77-80.View article

VERMEIJ, G.J. 1977. The Mesozoic marine revolution: Evidence from snails, predators and grazers. Paleobiology 3, 245-258.View article

VERMEIJ, G.J. 1987. Evolution and Escalation: An Ecological History of Life. 537 pp. Princeton University Press, Princeton. View article

VERMEIJ, G.J. 1994. The evolutionary interaction among species: Selection, escalation, and coevolution. Annual Review of Ecology and Systematics 25, 219-236.View article

VERMEIJ, G.J. 2013. On escalation. Annual Review of Earth and Planetary Science 41, 1-19.View article

VINTHER, J., STEIN, M., LONGRICH, N.R. & HARPER, D.A.T. 2014. A suspension-feeding anomalocarid from the Early Cambrian. Nature 507, 496-497.View article

VORTSEPNEVA, E., IVANOV, D., PURSCHKE, G. & TZETLIN, A. 2013. Morphology of the jaw apparatus in 8 species of Patellogastropoda (Mollusca, Gastropoda) with special reference to Testudinalia tesulata (Lottiidae). Zoomorphology 132, 359-377.View article

VORTSEPNEVA, E., IVANOV, D., PURSCHKE, G. & TZETLIN, A. 2014. Fine morphology of the jaw apparatus of Puncturella noachina (Fissurellidae, Vetigastropoda). Journal of Morphology 275, 775-787.View article

WAINWRIGHT, P.C., MCGEE, M.D., LONGO, S.J. & HERNANDEZ, P.L. 2015. Origins, Innovations, and Diversification of Suction Feeding in Vertebrates. Integrative & Comparative Biology 55, 134-145.View article

WHITTINGTON, H.B. & BRIGGS, D.E.G. 1985. The largest Cambrian animal, Anomalocaris, Burgess Shale, British Columbia. Philosophical Transactions of the Royal Society B 309, 569-609.View article

WITMER, L.M. 1995. The extant phylogenetic bracket and the importance of reconstructing soft tissues in fossils, 19-33. In THOMASON, J.J. (ed.) Functional morphology in vertebrate paleontology. Cambridge University Press, Cambridge.

ZEIDBERG, L. & ROBINSON, B.H. 2007. Invasive range expansion by the Humboldt squid, Dosidicus gigas, in the eastern North Pacific. PNAS 104, 12948-12950.View article

ZHU, M., AHLBERG, P.E., PAN, Z., ZHU, Y., QIAO, T., ZHAO, W., JIA, W. & LU, J. 2016. A Silurian maxillate placoderm illuminates jaw evolution. Science 354, 334-336.View article

ZHU, M., YU, X. & JANVIER, P. 1999. A primitive fossil fish sheds light on the origin of bony fishes. Nature 397, 607-610.View article

ZHU, M., ZHAO, W., JIA, L., LU, J., QIAO, T. & QU, Q. 2009. The oldest articulated osteichthyan reveals mosaic gnathostome characters. Nature 458, 469-474.View article